Mills introduces latest Doosan 5-axis machine tool range

The new, compact DNM 200 5AX, first exhibited by Doosan at EMO in September 2013 is now available to UK and Irish manufacturers and is the third Doosan 5-axis model launched by Mills in the last 3 years.

The new DNM 200 5AX machines will be held in stock at the Mills CNC Technology Campus, providing further evidence of Mills’ intentions to increase its share of the growing multi-axis milling machine tool market – similar to what the company has already achieved in the UK and Irish turning, mill/turn, horizontal machining centre and horizontal borer markets.

The DNM 200 5AX is a flexible and functional 5-axis machine designed for full simultaneous 5-axis or 4 + 1 machining and its versatility means it can be used for high-accuracy machining, heavy metal removal and fine finishing operations.

The machine has a rigid C-frame construction and exhibits excellent vibration and heat dissipation characteristics. Although the machine has a relatively small footprint it has a 200mm diameter table capable of handling work-pieces up to 60kg in weight.

The DNM 200 5AX can be supplied with a choice of Fanuc or Heidenhain control and is equipped with a powerful oil-cooled 18.5kW 12,000rpm direct-drive spindle capable of producing 118Nm of torque. Direct drive technology delivers fast acceleration/deceleration rates enabling customers to take advantage of the machine’s high-speed capabilities and perform machining operations such as rapid rigid tapping, efficiently and with ease.

The machine’s high-speed characteristics are exploited by the integration of a 200 block look ahead / 1g capacity data server for high speed contouring.

The DNM 200 5AX also features the dual contact 'Big Plus' face and taper configuration for increased rigidity and improved machining accuracy.

The machine's 5-axis capability is delivered by its A- axis (+30/-120 degrees of movement) and a C- axis (360 degrees of movement achieved in 0.001 increments).

The A axis (tilt) has hydraulic clamping for optimum machining capability when the table is tilted over. The tilt axis uses the latest cross roller bearing technology for increased rigidity and reduced heat generation. Rapid rates in the machine's A-axis and C-axis are 20rpm and 30rpm respectively.

The DNM 200 5AX is equipped with a 30 position bi-directional ATC (BT 40), and the machine's tool change time (T-T-T) is 1.3 seconds. Other standard features on the machine include automatic tool measurement (TS27R), a spindle head cooling system for improved thermal stability and coolant through spindle capability (20bar).

The machine also includes Doosan’s Thermal Compensation Function to reduce the effects of thermal growth - a critical feature on a 5 axis machine that helps to maintain accuracy.

The DNM 200 5AX will make its debut at MACH 2014 on Mills’ Stand (Hall 5 Stand 5430).